Can you post a photo of the color palette? I think the "shabby chic" aspect would be met by simply including materials other than cotton. I suggest use of simple geometrics. Such as layered flannel squares sewn wrong-sides together as shown in the url that Prism99 posted. Or something like I did with two girly lap quilts using purple & pink chenille fabric from my mom's & grandma's old robes. I also used hot pink swimsuit material for the backing and binding. The quilt shop where I rented their longarm to quilt them thought I was crazy; but we were all delighted after quilting was completed; my shop helper paraded it around the shop to the other employees. They were worried about the washability but after 16 years, the quilts still look brand new.